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Investigation of GAO-YONG turbulence model with OpenFOAM

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Abtract<br />In this talk, a relatively newturbulence model named Gao-Yongturbulence model is investigated using the open source software—OpenFOAM. A newly developed statistical partial average scheme is presented. As the ensemble average is taken on two groups of turbulent fluctuations separately, the partial average scheme able to capture the first-order statistical moment of the fluctuation field, providing valuable information in addition to what have been known in the past from the conventional Reynolds average. Without any empirical coefficients, the derived equations can be used to simulate statistical mean behaviours and coherent structures of various benchmark turbulent flows. The simulated results are in good agreement with experimental data.<br />5/22/2009<br />2<br />Haibin_Li@hotmail.com<br />

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Vitality </li></ul>Never rise price, stop development or technical support due to business problem<br /><ul><li>Quality</li></ul>Bug track and fix by global members of open community <br />Necessary for scientific computing software. <br />Black box verification can not fully demonstrate the validity especially for non-linear science software.<br /><ul><li>Creativity</li></ul>Innovative research might change the codes at any level.<br />5/22/2009<br />6<br />Haibin_Li@hotmail.com<br />

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GAO-YONG TURBULENCE EUQTIONS<br />energy dissipation due to eddy viscosity is the work done by fluctuation force over L<br />also<br />considering the phenomenon of turbulence energy inversion, <br />item should be subtracted from the right-hand side<br /> of the second equation , therefore<br />5/22/2009<br />11<br />Haibin_Li@hotmail.com<br />